Control mechanism for shutters



Feb. 16, 1943. R. R. DUBOUR ETAL 2,311,300

CONTROL MECHANISM FOR SHUTTERS Filed Nov. 6, 1939 2 Sheets-Sheet 2 I ATTORNE Y [N VENTORS fiumr, 40

62 raw.

Ralph Le/mm/ m 0. z fl n9 4 I l m 7 Petented Feb. 16, 1943 v CONTROLMECHANISM FOR SHUTTEB Ralph R. Dubour and Lemual G. Brown. OklahomaCity, Okla, assignoraby meme assignments, to J. F. Bush, Dallas, Tex.

Application 4 Claims.

This invention relates to a control mechanism particularly for actuatingthe louvers in shutters of the type disclosed in our copendingapplication, Serial No.v 302,976, filed of even date herewith, and hasfor its principal object to provide a control mechanism of thischaracter that is of simple and inexpensive construction and capable ofoperation from the interior side of a window.

Other objects of the invention are to provide a control mechanismconstructed so that it may be operated through a window-screeninterposed between the shutters and the sash of a window; to provide alever arrangement capable of locking the shutter louvers in closedposition; to provide a control mechanism constructed to swing thelouvers above horizontal position; and to provide the control mechanismwith an actuating lever which is not likely to be damaged by thewindow-sash.

It is a further object of the invention to provide a control mechanismdesigned for use with a key type operating crank.

In accomplishing these and other objects of the invention, ashereinafter pointed out, we have provided improved details of structure,the preferred forms of which are illustrated in the accompanyingdrawings, wherein:

Fig. 1 is a perspective view of the interior side of a window equippedwith an external shutter operated by a control mechanism embodying thefeatures of the present invention, a portion of the window-screen beingbroken away to better illustrate the control mechanism and connectionthereof with the louvers of the shutter.

Fig. 2 is a horizontal section through the window. v

Fig. 3 is a vertical section on the line 3-4 of Fig. 2.

Fig. 4 is a fragmentary perspective view of the window and shutter,particularly illustrating the position of the control parts when thelouvers of the shutter are in horizontal position.

Fig. 5 is a similar view showing the position of the control parts whenthe louvers are closed.

Fig. 6 is a perspective view, similar to Fig. 4, but illustrating amodifled form of the invention.

Referring more in detail to the drawings:

I designates a window including a frame 2 having vertical ways 3 and 4for slidably mounting the customary sash 5. Supported at the outer sideof the window-frame, and seated against the blind stop 8. is awindow-screen November 6, 1939, Serial No. 302,977

frame I carrying a screen wire 8 secured to the innen side thereof asclearly shown in Fig. 2.

Fixed to the outer side of the frame I is a shutter unit 9, having aframe including side stiles I0 and H provided with outwardly extendingflanges i2 and I3 carrying trunnions I4 and IS on which louvers I! arepivotally supported. The louvers have depending flanges I1 and II at theends thereof, provided with bosses l8 having openings 20 for passing thetrunnions it and it as clearly shown in Fig. 2, whereby the louvers areadaptedto swing through a substantially horizontal position as shown inFigs. 3 and 4,- to a vertical and closed position as shown in Fig. 5.All of the flanges of the louvers are connected at their inner ends byrods or links 2| and 22, the links being connected by pivot pins orrivets 23, so located with respect to the axes of the trunnions that thelinks will clear the flanges l2 and I! when the louvers are in closedposition, as shown in Fig. 5and so that they are'entirely located withinthe depth of the frame and not project from the inner face side whichcarries the screen. With this construction it is obvious thatreciprocation of either one of the links or rods 2| or 22 will effectmovement of the louvers through any position from open to the completelyclosed position shown in Fig. 5.

The structure thus far described specifically forms no part of thepresent invention as it is covered in the above mentioned copendingapplication, the specific structure being illustrated to give a betterunderstanding of the control mechanism to which the present applicationis directed. v 7

The control mechanism includes a bracketplate 24 interposed between oneside of the 'screen wire and the interior face of one of the side stiles25 of the window-screen frame I to cooperate with an inner bracket 26.The inner bracket 26 has a foot portion 21 interposed betwcen the innerface of the screen wire 8 and the screen retaining strip or moulding 2'.The innerbracket also includes a flange 29 turned inwardly andterminating in an car 30 located in spaced parallel relation with asimilar portion 3| of the bracket plate "24, which projects from theinner edge of the screen frame as shown in Fig. 2.

The portion 3| of the bracket plate and the ear 30 are provided withregistering bearing openings 32 and 23 which rotatably mount acrank-shaft 34. The crank-shaft 34 includes a shaft portion 38 thatextends through an opening in the screen and is rotatable in the hearingopenings 32 and 33. The inner end of the shaft portion has a crank 316terminating in a handle 31. The opposite end of the shaft portion has alever arm 38 extending substantially in the plane of the crank andadapted to swing in an are over the outer face of the bracket plate 24.The end of the lever arm is connected by a pivot 33 with a link 40,having its opposite end connected with a bolt 4|, replacing one of thepivot pins 23 previously mentioned.

The link 40 preferably comprises a strap twisted intermediate its ends,as at 42, whereby the respective ends thereof are adapted to freelypivot on the connections 39 and 4|. While the axes of the pivots arethus located in rightangular planes, there is sufiicient freedom ofmovement to prevent binding as the louvers are moved to and from theirvarious positions of adjustment. In order that the louvers may be swungabove horizontal position to admit sunlight, the lever arm 38 is longenough and the bracket plate is so located that when the louvers reachhorizontal position (Fig. 3), the arm 33 has not reached its lower deadcenter position, and further movement of the crank therefore swings thelouvers above horizontal position.

In actuating the control, and assuming that the louvers are in theposition shown in Fig. 3 and it is desirable to close them, the crank isswung upwardly in a clockwise direction, Fig. 4, causing the lever arm38 to swing the connecting link 40 in an upward arc and exert a liftingforce on the connecting bolt 4| to effect upward movement of the louverconnecting link or rod 22 which effects movement of all the louverstoward closed position as shown in Fig. 5. When the louvers arecompletely closed, the pivotal axis of the arm 38 lies in a dead centerposition with respect to the axis of the shaft portion 35 of thecrankshaft 34 and the axis of the pivotal connection 4| of the upper endof the link so that the louvers are automatically locked in closedposition. In opening the louvers rotation of-the crank is reversed, andstopped when the louvers are opened to the desired degree.

In the form of the invention illustrated in Fig. 6, the inner end of theshaft portion 43, corresponding to the shaft portion 34, terminates inahead 44, having a polygonal-shaped socket 45 to receive a similar shapedshank 46 on a removable crank 41. Otherwise the modified form oftheinvention is the same as the first described form.

From the foregoing it is obvious that we have provided a shutter controlmechanism that is of simple, durable construction and readily operatedfrom the interior side of a window. Itis also obvious that the controlmechanism is so designed that the shutters are readily manipulated atthe inner side of the window-screen.

What we claim and desire to secure by Letters Patent is:

1. A control mechanism for shutters having pivotal support on a framehaving inner and outer face sides, said shutters being arranged toproject from the outer face side, a link' pivotally connecting theshutters and contained within the depth of the frame so as not toproject from the inner face side of the frame, a bracket fixed on theinner face side of the frame, a shaft oscillatable in said bracket andhaving an end extending through the plane of said inner face side in thedirection of the shutters, a laterally extending arm on the shaftbetween said inner face side and the shutters, a link connecting saidlateral arm with the link pivotally connecting the shutters, and a crankconnected with the opposite end of the shaft on the inner face side ofthe frame for oscillating the shaft to move the shutters to and fromopen position, said arm and link connection having upper and lower deadcenter positions relative to the axis of the shaft and the pivotalconnection of said link in two positions of the shutters.

2. A control mechanism for shutters having pivotal support on a framecarrying a window screen attached to the inner face side of the frame,said shutters being arranged to project from the outer face side of theframe and on the outer side of said screen, a link pivotally connectingthe shutters on the shutter side of said screen, a bracket fixed to theframe on the inner face side of the screen, a shaft extending throughthe screen and oscillatable in said bracket, a laterally extending armon the shaft and oscillatable between the shutters and screen, a linkconnecting said lateral arm with the link pivotally connecting theshutters, and a crank connected with said shaft on the inner side of thescreen for oscillating the shaft to move said shutters to and from openposition, said arm and link connection having upper and lower deadcenter positions relative to the axis of the shaft and the pivotalconnection of said link in two positions of the shutters.

3. A control mechanism for shutters having pivotal support on a framehaving inner and outer face sides, said shutters being arranged toproject from the outer face side, a link pivotally connecting theshutters and contained within the depth of the frame so as not toproject from the inner face side of the frame, a bracket fixed on theinner face side of the frame, a shaft oscillatable in said bracket andhaving an end extending through the plane of saidv inner face side inthe direction of the shutters, a laterally extending arm on the shaftbetween said inner face side and the shutters, a link connecting saidlateral arm with the link pivotally connecting the shutters, a head onthe end of the shaft which projects inwardly from said innervface sideof the frame and having a polygonal shaped socket, and a removable crankhaving a polygonal portion engaged in said socket.

4. A control mechanism for shutters having pivotal support on a framecarrying a window screen attached to the inner face side of the frame,said shutters being arranged to project from the outer face side. of theframe and on the outer side of said screen, a link pivotally connectingthe shutters on the shutter side of said screen, a bracket fixed to theframe on the inner face side of the screen, a shaft extending throughthe screen and oscillatable in said bracket, 9. laterally extending armon the shaft and oscillatable between the shutters and screen, a linkconnecting said lateral arm with the link pivotally connecting theshutters, a head on the shaft at the inner side of said screen andhaving a polygonal shaped socket, and a removable crank having apolygonal portion engaged in said socket.

RALPH R. DUBOUR. V LEMUEL G. BROWN.

